ES2144981T1 - RETRORFLEXIVE STRATIFICATION WITH DOUBLE ORIENTATION. - Google Patents

RETRORFLEXIVE STRATIFICATION WITH DOUBLE ORIENTATION.

Info

Publication number
ES2144981T1
ES2144981T1 ES96942885T ES96942885T ES2144981T1 ES 2144981 T1 ES2144981 T1 ES 2144981T1 ES 96942885 T ES96942885 T ES 96942885T ES 96942885 T ES96942885 T ES 96942885T ES 2144981 T1 ES2144981 T1 ES 2144981T1
Authority
ES
Spain
Prior art keywords
cube corner
sheeting
pascals
elastic modulus
overlay film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
ES96942885T
Other languages
Spanish (es)
Inventor
Susan K Nestegard
Gerald M Benson
Cheryl M Frey
John C Kelliher
James E Lasch
Kenneth L Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24350923&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2144981(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of ES2144981T1 publication Critical patent/ES2144981T1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/122—Reflex reflectors cube corner, trihedral or triple reflector type
    • G02B5/124—Reflex reflectors cube corner, trihedral or triple reflector type plural reflecting elements forming part of a unitary plate or sheet

Abstract

A cube corner retroreflective sheeting construction comprising alternating zones of cube corner element arrays disposed at approximately ninety degrees orientations to provide exactly two principal plane of improved retroreflective performance in response to light incident on the sheeting at high entrance angles is disclosed. According to one embodiment the sheeting includes a body layer which has an elastic modulus less than 7x108 pascals and cube corner elements formed from a material which has an elastic modulus greater than 16x108 pascals. According to a second embodiment the sheeting includes an overlay film having two major surfaces and comprising a first polymeric material and a plurality of arrays of substantially independent cube corner elements bonded to a major surface of the overlay film having a minimal, fractured land.
ES96942885T 1996-01-19 1996-12-05 RETRORFLEXIVE STRATIFICATION WITH DOUBLE ORIENTATION. Pending ES2144981T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/587,719 US5706132A (en) 1996-01-19 1996-01-19 Dual orientation retroreflective sheeting

Publications (1)

Publication Number Publication Date
ES2144981T1 true ES2144981T1 (en) 2000-07-01

Family

ID=24350923

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96942885T Pending ES2144981T1 (en) 1996-01-19 1996-12-05 RETRORFLEXIVE STRATIFICATION WITH DOUBLE ORIENTATION.

Country Status (11)

Country Link
US (2) US5706132A (en)
EP (1) EP0875008B2 (en)
KR (1) KR100414266B1 (en)
CN (1) CN1284981C (en)
AT (1) ATE221670T1 (en)
AU (1) AU712593B2 (en)
BR (1) BR9612442A (en)
CA (1) CA2242771C (en)
DE (2) DE69622754T3 (en)
ES (1) ES2144981T1 (en)
WO (1) WO1997026567A1 (en)

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DE69629685T2 (en) * 1995-06-09 2004-06-17 Minnesota Mining And Mfg. Co., Saint Paul RETRO-REFLECTING, CUBED-LIQUID BODY WITH UNQUALIFIED BASE TRIANGLES
US5706132A (en) * 1996-01-19 1998-01-06 Minnesota Mining And Manufacturing Company Dual orientation retroreflective sheeting
KR19990082023A (en) * 1996-01-26 1999-11-15 스프레이그 로버트 월터 Laminated laminate mold and its manufacturing method
US6015214A (en) * 1996-05-30 2000-01-18 Stimsonite Corporation Retroreflective articles having microcubes, and tools and methods for forming microcubes

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CA2242771C (en) 2004-10-12
DE69622754T3 (en) 2010-12-23
BR9612442A (en) 1999-07-13
EP0875008B1 (en) 2002-07-31
CA2242771A1 (en) 1997-07-24
AU1146397A (en) 1997-08-11
CN1214120A (en) 1999-04-14
US5936770A (en) 1999-08-10
DE69622754T2 (en) 2003-04-24
ATE221670T1 (en) 2002-08-15
DE69622754D1 (en) 2002-09-05
CN1284981C (en) 2006-11-15
KR100414266B1 (en) 2004-05-20
US5706132A (en) 1998-01-06
KR19990077381A (en) 1999-10-25
AU712593B2 (en) 1999-11-11
EP0875008A1 (en) 1998-11-04
EP0875008B2 (en) 2010-06-23
DE875008T1 (en) 2000-11-09
WO1997026567A1 (en) 1997-07-24

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